package playCard;

import java.util.ArrayList;
import java.util.List;
import java.util.Random;

public class Cards {
    public static final String[] suits = {"♥" ,"♠","♣","♦"};
    //4个花色 13张牌
    public List<Card> buyCard(){
        List<Card> cardList = new ArrayList<>();
        for (int i = 0; i <4 ; i++) {
            for (int j = 0; j <13 ; j++) {
                int rank=j;
                String suit = suits[i];
                Card card= new Card(rank,suit);
                cardList.add(card);


            }

        }
        return cardList;

    }
    public void shuffle(List<Card> cardList){
        Random random = new Random();
        for (int i = cardList.size()-1; i >0; i--) {
            int randIndex = random.nextInt(i);
            swap(cardList,i,randIndex);
        }

    }
    private void swap(List<Card> cardList,int i,int j){
        Card tmp = cardList.get(i);
        cardList.set(i,cardList.get(j));
        cardList.set(j,tmp);
    }
    public void drawCard(List<Card> cardList){
        List<Card> hand1 = new ArrayList<>();
        List<Card> hand2 = new ArrayList<>();
        List<Card> hand3 = new ArrayList<>();
        List<List<Card>> hands = new ArrayList<>();
        hands.add(hand1);
        hands.add(hand2);
        hands.add(hand3);
        for (int i = 0; i <5 ; i++) {
            for (int j = 0; j <3 ; j++) {
                Card card=cardList.remove(0);
                List<Card> tmpHand = hands.get(j);
                tmpHand.add(card);
            }

        }
        System.out.println("第一个人的牌："+hand1);
        System.out.println("第二个人的牌："+hand2);
        System.out.println("第三个人的牌："+hand3);

    }



}
